package com.ruiyi.subway.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class LunarUtil   
{   
    private int year;   
    private int month;   
    private int day;   
    private boolean leap;   
    final static String chineseNumber[] =   
    { "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二" };   
    final static String Big_Or_Small[] =   
    { "大", "小", "大", "小", "大", "小", "大", "大", "小", "大", "小", "大" };   
    private String[] LunarHolDayName =   
    { "小寒", "大寒", "立春", "雨水", "惊蛰", "春分", "清明", "谷雨", "立夏", "小满", "芒种", "夏至",   
            "小暑", "大暑", "立秋", "处暑", "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪",   
            "冬至" };   
  
    static SimpleDateFormat chineseDateFormat = new SimpleDateFormat(   
            " yyyy年MM月dd日 ");   
    final static long[] lunarInfo = new long[]   
    { 0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0,   
            0x09ad0, 0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255,   
            0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0,   
            0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2,   
            0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60,   
            0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550,   
            0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557,   
            0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0,   
            0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4,   
            0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0,   
            0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540,   
            0x0b5a0, 0x195a6, 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a,   
            0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970,   
            0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5,   
            0x092e0, 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0,   
            0x0abb7, 0x025d0, 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4,   
            0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930,   
            0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0,   
            0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7,   
            0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0,   
            0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255,   
            0x06d20, 0x0ada0 };   
  
    // ====== 传回农历 y年的总天数   
    final private static int yearDays(int y)   
    {   
        int i, sum = 348;   
        for (i = 0x8000; i > 0x8; i >>= 1)   
        {   
            if ((lunarInfo[y - 1900] & i) != 0)   
                sum += 1;   
        }   
        return (sum + leapDays(y));   
    }   
  
    // ====== 传回农历 y年闰月的天数   
    final private static int leapDays(int y)   
    {   
        if (leapMonth(y) != 0)   
        {   
            if ((lunarInfo[y - 1900] & 0x10000) != 0)   
                return 30;   
            else  
                return 29;   
        }   
        else  
            return 0;   
    }   
  
    // ====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0   
    final private static int leapMonth(int y)   
    {   
        return (int) (lunarInfo[y - 1900] & 0xf);   
    }   
  
    // ====== 传回农历 y年m月的总天数   
    final private static int monthDays(int y, int m)   
    {   
        if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)   
            return 29;   
        else  
            return 30;   
    }   
  
    // ====== 传回农历 y年的生肖   
    final public String animalsYear()   
    {   
        final String[] Animals = new String[]   
        { "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };   
        return Animals[(year - 4) % 12];   
    }   
  
    // ====== 传入 月日的offset 传回干支, 0=甲子   
    final private static String cyclicalm(int num)   
    {   
        final String[] Gan = new String[]   
        { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };   
        final String[] Zhi = new String[]   
        { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };   
        return (Gan[num % 10] + Zhi[num % 12]);   
    }   
  
    // ====== 传入 offset 传回干支, 0=甲子   
    final public String cyclical()   
    {   
        int num = year - 1900 + 36;   
        return (cyclicalm(num));   
    }   
  
    /** */  
    /**  
     * 传出y年m月d日对应的农历. yearCyl3:农历年与1864的相差数 ? monCyl4:从1900年1月31日以来,闰月数  
     * dayCyl5:与1900年1月31日相差的天数,再加40 ?  
     *   
     * @param cal  
     * @return  
     */  
    public LunarUtil(Calendar cal)   
    {   
        // cal.add(cal.get(Calendar.DAY_OF_MONTH),1);   
        @SuppressWarnings(" unused ")   
        int yearCyl, monCyl, dayCyl;   
        int leapMonth = 0;   
        Date baseDate = null;   
        try  
        {   
            baseDate = chineseDateFormat.parse(" 1900年1月31日 ");   
        }   
        catch (ParseException e)   
        {   
            e.printStackTrace(); // To change body of catch statement use   
                                 // Options | File Templates.   
        }   
  
        // 求出和1900年1月31日相差的天数   
        int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);   
        dayCyl = offset + 40;   
        monCyl = 14;   
  
        // 用offset减去每农历年的天数   
        // 计算当天是农历第几天   
        // i最终结果是农历的年份   
        // offset是当年的第几天   
        int iYear, daysOfYear = 0;   
        for (iYear = 1900; iYear < 2050 && offset > 0; iYear++)   
        {   
            daysOfYear = yearDays(iYear);   
            offset -= daysOfYear;   
            monCyl += 12;   
        }   
        if (offset < 0)   
        {   
            offset += daysOfYear;   
            iYear--;   
            monCyl -= 12;   
        }   
        // 农历年份   
        year = iYear;   
  
        yearCyl = iYear - 1864;   
        leapMonth = leapMonth(iYear); // 闰哪个月,1-12   
        leap = false;   
  
        // 用当年的天数offset,逐个减去每月（农历）的天数，求出当天是本月的第几天   
        int iMonth, daysOfMonth = 0;   
        for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++)   
        {   
            // 闰月   
            if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap)   
            {   
                --iMonth;   
                leap = true;   
                daysOfMonth = leapDays(year);   
            }   
            else  
                daysOfMonth = monthDays(year, iMonth);   
  
            offset -= daysOfMonth;   
            // 解除闰月   
            if (leap && iMonth == (leapMonth + 1))   
                leap = false;   
            if (!leap)   
                monCyl++;   
        }   
        // offset为0时，并且刚才计算的月份是闰月，要校正   
        if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1)   
        {   
            if (leap)   
            {   
                leap = false;   
            }   
            else  
            {   
                leap = true;   
                --iMonth;   
                --monCyl;   
            }   
        }   
        // offset小于0时，也要校正   
        if (offset < 0)   
        {   
            offset += daysOfMonth;   
            --iMonth;   
            --monCyl;   
        }   
        month = iMonth;   
        day = offset + 1;   
    }   
  
    public static String getChinaDayString(int day)   
    {   
        String chineseTen[] =   
        { "初", "十", "廿", "卅" };   
        int n = day % 10 == 0 ? 9 : day % 10 - 1;   
        if (day > 30)   
            return "";   
        if (day == 10)   
            return "初十";   
        else  
            return chineseTen[day / 10] + chineseNumber[n];   
    }   
  
    public String toString()   
    {   
        return /* cyclical() + "年" + */(leap ? "闰" : "")   
                + chineseNumber[month - 1] + "月" + getChinaDayString(day);   
    }   
  
    public String numeric_md()   
    {// 返回阿拉伯数字的阴历日期   
        String temp_day;   
        String temp_mon;   
        temp_mon = month < 10 ? "0" + month : "" + month;   
        temp_day = day < 10 ? "0" + day : "" + day;   
  
        return temp_mon + temp_day;   
    }   
    
    public String numericMd()   
    {// 返回阿拉伯数字的阴历日期   
        String temp_day;   
        String temp_mon;   
        temp_mon = month < 10 ? "0" + month : "" + month;   
        temp_day = day < 10 ? "0" + day : "" + day;   
  
        return temp_mon +"-"+ temp_day;   
    }   
  
    public String get_month()   
    {// 返回阴历的月份   
        return chineseNumber[month - 1];   
    }   
  
    public String get_date()   
    {// 返回阴历的天   
        return getChinaDayString(day);   
    }   
  
    public String get_Big_Or_Small()   
    {// 返回的月份的大或小   
        return Big_Or_Small[month - 1];   
    }   
    
    public static void main(String[] args) {
    	Calendar cal= Calendar.getInstance();
		LunarUtil lunar = new LunarUtil(cal);
		System.out.println(lunar.numericMd());
	}
  
}  
